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Red Cell Indices

MCV, MCH, MCHC, and RDW

These are measurements or calculations related to red blood cells (RBCs) and are components of the Complete Blood Count (CBC), a commonly requested test used for a variety of purposes. To learn more about the CBC and these individual components, please review the CBC page, especially "The Test: How is it used?" and "The Test: What does the test result mean?" (RBC Evaluation) sections.

Descriptions of clinical laboratory tests were originally prepared for use on Lab Tests Online, an award-winning patient education website on clinical laboratory testing. Lab Tests Online is produced by the American Association for Clinical Chemistry (AACC), a global scientific and medical professional organization dedicated to clinical laboratory science and its application to healthcare. The Lab Tests Online website is developed in collaboration with other laboratory professional societies and is funded in part through corporate sponsorships.